Note about Intel Cedarview (GMA3600) Linux driver

Intel Cedarview (GMA3600) has PowerVR 545 graphics core, which has
both netbook and desktop product. This is a little guide to help if
you find trouble to make basic linux graphics operate on these
hardware.

Option 1: Use upstream 'gma500' driver

- Upstream kernel from 3.2 should have cedarview support with 'gma500'
driver maintained by Alan Cox. It provides basic KMS support for
LVDS/VGA/HDMI but without graphics acceleration. With X's fbdev
driver, you should have normal X desktop up.

- make sure CONFIG_DRM_GMA500 and CONFIG_DRM_GMA3600 is on in kernel
config.

Option 2: Use downstream PVR driver

- PVR kernel also uses GPL license. Clone latest tree for kernel 3.2
like below:
	
	git clone git://people.freedesktop.org/~zhen/drm-intel

  And check out 'cdv-3.2' branch.

- This driver is still under staging/, so be sure to turn on driver
config under staging. As this driver is kind of reference driver for
upstream gma500 driver, it also provides KMS support and other
facilities for graphics and media acceleration. If you choose this
one, you should disable gma500 driver that will cause conflict.

- Make sure CONFIG_DRM_INTEL_CDV and CONFIG_DRM_CDV_RELEASE is on in
config. The driver is named as 'cedarview_gfx.ko'.

- For user space Xorg and GL/GLES, PVR only has closed source
driver. 

    	http://people.freedesktop.org/~zhen/cedarview/ 

  which contains binary tarball for xserver 1.11 and mesa. Run
"install.sh" to install X driver, mesa dri driver and it will provide
PVR's implementation of EGL/GLES libraries.

- You might need to add 'Driver "pvr"' in your xorg.conf's Device
section.

- If you run into some issues with GLES apps, try to create
/etc/powervr.ini and add below config.

	[default]
	DisableHWTextureUpload=1

- I don't accept or handle any bug report for GL/GLES driver!